Tides Today & Tomorrow in Nonopapa, Niihau Island, HI

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Nonopapa, Niihau Island, HI.
Next low tide : in 4h 33m at 2:14 am (0.1 ft)
Next high tide : 8:11 am (0.7 ft)
Sunset today : 7:28 pm
Sunrise tomorrow : 6:02 am
Moon phase : Waning Gibbous (79% illuminated)
Tide Station Location : Station #1610367
Common Questions About Tides

Nonopapa, Niihau Island, HI Tides - Oct 2048

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:411.44:290.46:540.36:326:27Third Quarter1Thu
2Fri12:300.812:231.45:370.47:180.26:326:26Waning Crescent2Fri
3Sat1:060.91:001.46:330.37:420.26:336:26Waning Crescent3Sat
4Sun1:401.11:351.47:230.38:050.16:336:25Waning Crescent4Sun
5Mon2:141.22:081.38:120.38:290.16:336:24Waning Crescent5Mon
6Tue2:501.42:421.29:010.38:550.06:346:23New Moon6Tue
7Wed3:281.63:171.19:520.39:220.06:346:22New Moon7Wed
8Thu4:091.73:531.010:460.39:510.06:346:21New Moon8Thu
9Fri4:531.84:320.911:450.310:240.06:356:20Waxing Crescent9Fri
10Sat5:421.85:160.712:510.36:356:19Waxing Crescent10Sat
11Sun6:381.76:130.62:070.46:356:18Waxing Crescent11Sun
12Mon7:421.77:420.53:310.46:366:18First Quarter12Mon
13Tue8:521.69:390.612:460.24:460.36:366:17First Quarter13Tue
14Wed10:021.611:110.72:170.35:400.26:366:16First Quarter14Wed
15Thu11:051.54:010.46:190.26:376:15First Quarter15Thu
16Fri12:120.911:59 AM1.55:280.46:510.16:376:14Waxing Gibbous16Fri
17Sat1:001.112:451.46:390.47:200.16:386:13Waxing Gibbous17Sat
18Sun1:411.31:261.37:400.47:460.06:386:13Waxing Gibbous18Sun
19Mon2:191.52:031.28:330.38:110.06:386:12Full Moon19Mon
20Tue2:551.62:391.09:220.38:360.06:396:11Full Moon20Tue
21Wed3:301.73:130.910:090.39:020.06:396:10Full Moon21Wed
22Thu4:051.73:460.810:550.39:290.06:406:10Full Moon22Thu
23Fri4:401.74:190.711:410.39:570.16:406:09Waning Gibbous23Fri
24Sat5:171.64:530.612:300.46:416:08Waning Gibbous24Sat
25Sun5:571.65:330.61:250.46:416:08Waning Gibbous25Sun
26Mon6:421.56:300.52:290.46:426:07Waning Gibbous26Mon
27Tue7:351.48:140.53:360.46:426:06Third Quarter27Tue
28Wed8:341.410:100.612:280.44:340.36:436:06Third Quarter28Wed
29Thu9:351.311:210.71:560.55:160.36:436:05Third Quarter29Thu
30Fri10:311.33:410.55:480.26:446:04Third Quarter30Fri
31Sat12:060.911:20 AM1.25:060.56:160.26:446:04Waning Crescent31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (1610367)

Common Questions About Nonopapa, Niihau Island, HI Tides

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What time does the tide turn (slack tide) in Nonopapa, Niihau Island, HI today?

Slack tide in Nonopapa, Niihau Island, HI is approximately 5:12 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Nonopapa, Niihau Island, HI?

Nonopapa, Niihau Island, HI is currently in a transitional phase. Tonight's moon is 79% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Nonopapa, Niihau Island, HI tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Nonopapa, Niihau Island, HI?

Tide predictions for Nonopapa, Niihau Island, HI come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Nonopapa, Niihau Island, HI?

Tide data for Nonopapa, Niihau Island, HI is sourced from NOAA Station #1610367. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=1610367.

What is the moon phase in Nonopapa, Niihau Island, HI tonight?

Tonight the moon over Nonopapa, Niihau Island, HI is Waning Gibbous (79% illuminated). This places Nonopapa, Niihau Island, HI in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA